Thanks again, Bayard. I did figure out that there are two search bars. At first, I had only noticed the one at the top that searches the entire site, not just AVs. But I see now that there is a second one lower down. So I tried that and found that I have to register with the site to use the search function, which is odd because I don't have to register to scroll through and read all the posts. I also get a frequent pop-up asking me to join. So I'll browse that forum a bit more and decide if I want to do that.
Thanks, also, DeaC, for your link. They don't have a discussion forum, but there is a lot of good information there.
I guess I'm just very spoiled (in a good way!) with the way the OB and a couple of dog-related forums I belong to are organized neatly into different categories, and finding information pertaining to a particular subject seems much easier.